| Local Name | R821T FInd Muse |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2013 |
| Status | Available. Released 2013 |
| Dimensions | 123 x 63.5 x 9.9 mm (4.84 x 2.5 x 0.39 in) |
| SIM | Dual SIM (Mini-SIM, dual stand-by) |
| Display Type | IPS LCD capacitive touchscreen, 16M colors |
| Screen Size | 4.0 inches (~58.3% screen-to-body ratio) |
| Resolution | 480 x 800 pixels (~233 ppi pixel density) |
| Mulitouch | Yes |
| OS | Android OS, v4.2 (Jelly Bean) |
| Chipset | Mediatek MT6572 |
| CPU | Dual-core 1.2 GHz Cortex-A7 |
| GPU | Mali-400 |
| Card Slot | microSD, up to 32 GB (dedicated slot) |
| Internal Memory | 4 GB, 512 MB RAM |
| Primary Camera | 3.15 MP |
| Camera Features | Geo-tagging |
| Video | Yes |
| Secondary Camera | VGA |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g, hotspot |
| Bluetooth | Yes |
| GPS | Yes, with A-GPS |
| Radio | FM radio |
| USB | microUSB v2.0 |
| Sensors | Accelerometer, proximity |
| Messaging | SMS (threaded view), MMS, Email, Push Email |
| Browser | HTML |
| Java | No |
| Features Summary | MP4/H.264/WMV player, MP3/eAAC+/WMA/WAV player, Document viewer, Photo viewer/editor, Voice memo/dial |
| Battery | Removable Li-Ion 1700 mAh battery |
| Colors | White |
